Patents
Patents for B01D 53 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols (135,933)
09/1988
09/07/1988EP0280750A1 Method and apparatus for treating H2S containing gases
09/07/1988CN88100739A Process and composition for the removal of hydrogensulfide and/or carbon dioxide from gaseous streams
09/06/1988US4769356 Catalyst for purifying exhaust gas
09/06/1988US4769263 Polyalkylene, polysiloxane, polyurethane, or butadiene-styrene copolymer surrounded by filaments
09/06/1988US4769229 Sulfur recovery process using metal oxide absorber feed for regeneration
09/06/1988US4769224 Process for the removal of hydrogen cyanide from a gas stream
09/06/1988US4769149 Method for the recovery of energy from waste and residues
09/06/1988US4769084 Synthetic chemical adsorbents
09/06/1988US4769053 High efficiency sensible and latent heat exchange media with selected transfer for a total energy recovery wheel
09/06/1988US4769047 Process for the production of ethylene oxide
09/06/1988US4768963 For use with a metal wall
09/06/1988US4768448 Method and plant for neutralizing acid smokes issued particularly from the combustion of residues
09/06/1988CA1241524A1 Abatement of indoor formaldehyde vapour and other indoor gaseous pollutants
09/01/1988DE3709649C1 Apparatus for improving the flow equalisation downstream of a lamellae element apparatus
09/01/1988DE3705705A1 Apparatus, plant and process for removing pollutants from flue gases
09/01/1988DE3705604A1 Process for introducing reactants into a fluid stream
09/01/1988DE3642838A1 Process and apparatus for the simultaneous separation of SO2/NOx downstream of furnaces and NH3 slip removal by means of a fresh coke filter system
08/1988
08/31/1988EP0280585A1 Process and installation for the elimination of silicium hydrides from exhaust gas
08/31/1988EP0280009A2 Process for preparing titanium oxide catalysts
08/31/1988CN87108000A Preparation of n-substituted piperazinones
08/30/1988US4767740 Metallic support for exhaust gas catalysts of Otto-engines and method for making the support
08/30/1988US4767605 Method for separation of acid pollution gas
08/30/1988US4767422 Repairing defects by post-treatment with volatile solvent and additives
08/30/1988US4766872 Canister for capturing evaporated fuel
08/30/1988CA1241480A1 Aqueous emulsions containing hydrophilic silicone- organic copolymers
08/30/1988CA1241478A1 Hydrophilic silicone-organic copolymer elastomers
08/30/1988CA1241182A1 Oxidative removal of hydrogen sulfide from gas streams
08/30/1988CA1241181A1 Method of separating and purifying hydrogen
08/25/1988WO1988006140A1 Process for the reduction of nitrogen oxides in an effluent
08/25/1988WO1988006061A1 Method of reducing the oxides of nitrogen in fossil fuels combustion and combustion products effluents
08/25/1988WO1988006057A1 Air cleaning device
08/25/1988DE3800730A1 Method for mixing ammonia into a flue gas stream
08/25/1988DE3704637A1 Process and apparatus for introducing adsorbent into flue gas ducts
08/25/1988DE3704516A1 Mining and tunnelling filter for separating off nitrous gases
08/24/1988EP0279667A2 Process for the removal of hydrogen sulfide and optionally carbon dioxide from gaseous streams
08/24/1988EP0279495A1 An air drying apparatus
08/24/1988EP0279494A2 Process for desulfurizing gases
08/24/1988EP0279116A2 Desulphurisation
08/24/1988EP0279107A1 Continuous gas treatment method and apparatus for adsorption processes
08/24/1988EP0279085A2 H2S removal from gas streams
08/24/1988EP0279003A1 Process for cleaning smoke and exhaust gases by a wet process
08/24/1988CN87215165U Duster for smoke desulphuration
08/23/1988US4766229 Materials for gas separation
08/23/1988US4765969 Reacting with ammonium hydroxide to form ammonium sulfide, heating to form hydrogen sulfide and sulfur, recycling hydrogen sulfide
08/23/1988US4765960 Bushing, cylindrical head. collar with engaging grooves
08/23/1988US4765873 Continuous process for the removal of hydrogen sulfide from a gaseous stream
08/23/1988US4765822 Treating fluosilic acid with ammonia or sodium hydroxide or sodium carbonate; fertilizers
08/23/1988US4765808 Separation of carbon monoxide from nitrogen with Ba exchanged zeolite X
08/23/1988US4765806 Control method for a dual-cylinder moisture removal apparatus
08/23/1988US4765805 Method and apparatus for removing dust and gas pollutants from waste gases, particularly waste gases produced in the manufacture of optical waveguide preforms
08/23/1988US4765804 Low energy; utilization of waste pressure energy
08/23/1988CA1240826A1 Dispersing particulate material in a stream of gas
08/23/1988CA1240825A1 Fluid treating
08/18/1988DE3704030A1 Process for separating off nitrogen oxides from exhaust gases by selective catalytic reduction
08/18/1988DE3703766A1 Process for treating the clean gases of a flue gas desulphurisation plant
08/18/1988DE3703724A1 Process for concentrating a waste solution from flue gas purification
08/18/1988DE3703286A1 Process for desulphurising COS- and H2S-containing fuel gases in solvents
08/18/1988DE3703137A1 Multiply active bactericidal/fungicidal chemisorption filter for treating breathing air, in particular for allergic people
08/18/1988DE3702463A1 Combined dry and wet flue gas purification system for separating off HF, HCl, SO3, SO2, NOx and dust
08/17/1988EP0278537A1 Process for separating gaseous mercury from gases
08/17/1988EP0278535A1 Catalyst composition and absorbent which contain an anionic clay
08/17/1988EP0278437A2 Production of mixed gases of controlled composition by pressure swing adsorption
08/17/1988EP0278241A1 Process for mixing ammoniac into a flue gas stream
08/17/1988EP0278096A2 Method for continuously controlling emissions and immissions of mercury
08/17/1988EP0278025A1 Method for dry flue gas desulfurization incorporating nitrogen oxides removal
08/17/1988CN85109036B Air-drying device for pneumatic equipment
08/16/1988US4764355 Process for removal of solid and gaseous noxious matter from hot gases
08/16/1988US4764354 Alkanolamine gas treating process for a feedstream containing hydrogen sulfide
08/16/1988US4764348 Emission control apparatus
08/16/1988US4764345 Using lime; ceramic carriers, conveyors and heat exchangers; power plants
08/16/1988US4764276 To increase resin reaction efficiency in minimum substrate
08/16/1988US4764189 Check valves; exhaust air used as purge air
08/16/1988US4764187 Radon from air
08/16/1988US4763721 Process for the cooling or heating of a gas
08/16/1988CA1240485A1 Process for inhibiting hydrates with inorganic electrolytes while producing moist co.sub.2 from subterranean reservoir
08/16/1988CA1240484A1 Adsorbent composition useful in retarding corrosion in mufflers
08/11/1988WO1988005762A1 Process and apparatus for reducing the concentration of pollutants in an effluent
08/11/1988WO1988005694A1 Process for removing sulfur gases from a combustion gas
08/11/1988WO1988005693A1 Regenerating dynamic adsorber system and method for contaminant removal
08/11/1988WO1988005692A1 Device for the washing of smoke gas
08/11/1988DE3802871A1 Use of a catalyst based on modified zeolite, charged with one or more metals from the group consisting of Fe, Cu, Ni and Co, in the SCR process
08/11/1988DE3702845A1 Apparatus and process for drying gases
08/11/1988DE3702456A1 Fuel feed system with distributor device for motor vehicles
08/11/1988DE3153366C2 Apparatus for separating gas mixtures and liquid mixtures
08/10/1988EP0277843A2 Ozone adsorbing and decomposing agent and method of using same
08/10/1988EP0277765A1 Method for the removal of nitrogen oxides from the exhaust gas of a diesel engine
08/10/1988EP0277559A2 Method of purifying exhaust gases
08/10/1988EP0277411A1 Device and method for separating individual fluids from a mixture of fluids
08/10/1988EP0277300A1 Device for the purification and neutralization of furnace wastes
08/10/1988EP0277246A1 Wet-process stack gas purification method and apparatus
08/10/1988CN88100465A Process for removing sulfur gases from combustion gas
08/10/1988CN85100809B Process for the separation and simultaneous obtaining of acid impurities from gas mixtures
08/09/1988US4762934 Diaminoether compositions
08/09/1988US4762796 pH control of a process stream
08/09/1988US4762689 Combination of retaining module and catalyst plates
08/09/1988US4762686 To remove fly ash and sulfur dioxide
08/09/1988US4762596 Pollution control, electrolysis degassing
08/09/1988US4762538 Spray absorber and method of operating
08/09/1988US4762536 Adsorber for cleaning gases
08/09/1988US4762535 Ammonia separation using semipermeable membranes